you're gonna have a bad time
Example:
Cody: "So...what did you want to say to me again?"
Scarlett: "I...um..."
Sans: "heh, hey kid, you're gonna have a bad time."
Cody: "So...what did you want to say to me again?"
Scarlett: "I...um..."
Sans: "heh, hey kid, you're gonna have a bad time."